Another pre-made idea I had, based on gray wolves since a lot of them have black down the center of their tail and a black tip. Of course it doesn't look quite like this, but since I don't airbrush fur yet this is all I could do haha.

I was also going to do one with my golden coyote fur, but I think I'm going to alter this canine tail pattern first (it was somewhat of a test of a larger canine tail pattern). I don't quite like the shape, and I think I want it less curled at the tip.